B

180-35-45=100

All triangles measure 180˚, and since you've already been given two sides, you can just add those sides and subtract from 180˚.

180 - (35+45) =

180 - 80

= 100

So the missing angle is 100˚ - B

Measures Of A Triangle

100

Please understand that the sum total of all the angles of a triangle should be 180 degrees.

Already 35° and 45° are given,

so the remaining angle should be 180-(35+45) = 180-80 = 100°

So, 100° is the answer..

D.

the inside of a triangle equals 180° total.

So, just add 35° + 45° = 80°

Then, subtract 180° - 80° = 100°

So the correct answer would then be "B"

Well the sum of all the angles of a triangle is equal to 180 degrees.

So you would add 45 and 35 to get 80 and then subtract 80 from 180.

45+35= 80

180-80= 100

So the answer would be B 100 degrees :)

100°

B